Compress PDF

Reduce PDF file size online

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*Files deleted after 24 hours

Convert up to 1 GB files free, Pro users can convert up to 100 GB files; Sign up now

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How to Compress PDF

1 Upload your PDF file

2 Choose compression level

3 Click Compress to start

4 Download your compressed PDF

Compress PDF FAQ

What is the Compress PDF tool?

This free online tool lets you compress PDF file files quickly and easily, without installing any software.

What file formats are supported?

We support PDF and many other file formats. You can also convert between different formats.

Is there a file size limit for PDF files?

Free users can process PDF files up to 100MB. Premium users have higher limits.

Will this affect the quality of my PDF file?

Our tool is designed to maintain the best possible quality while compressing your PDF files.

Can I compress multiple PDF files at once?

Yes, you can upload and compress multiple PDF files in a batch for faster processing.

Is the Compress PDF tool free to use?

Yes, our Compress PDF tool is completely free for basic usage. No registration required.

Does it work on mobile devices

Yes, our converter is fully responsive and works on smartphones and tablets. You can convert files on iOS, Android, and any other mobile platform with a modern browser.

Which browsers are supported

Our converter works with all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. We recommend keeping your browser updated for the best experience.

Are my files kept private and secure

Absolutely. Your files are processed securely and automatically deleted from our servers after conversion. We don't read, store, or share your file contents. All transfers use encrypted HTTPS connections.

What if my download doesn't start

If your download doesn't start automatically, try clicking the download button again. Make sure pop-ups are not blocked, and check your browser's download folder. You can also right-click the download link and select 'Save As'.

Will the quality be preserved

Video quality stays intact during processing during conversion. Results depend on the source file and target format compatibility.

Do I need to create an account

No account is required for basic usage. You can process files immediately. Creating a free account gives you access to your conversion history and additional features.